VOLVO
CEM-1A01 - Upper 30-power supply Open circuit
Układ
Centralny moduł elektroniczny (CEM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
5 modeliS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Co oznacza ten kod błędu?
The CEM is supplied from the battery through two separate inputs. If the upper 30 supply is open, the module has no voltage on that side, so for example only one side of the exterior lighting may lack power. The fault is caused by an open circuit or a short to ground in the supply, or by a blown fuse.
Możliwe przyczyny
- Open circuit or short to ground on the upper 30 supply
- Blown fuse in the battery main fuse box
Co możesz zrobić
- 1Check whether the main fuse at the battery has blown and replace it if needed
- 2Check with a multimeter that the wire between the CEM and the main fuse is not open when the connectors are disconnected
- 3Check with a multimeter that the wire has no contact with ground (the bodywork) when the connectors are disconnected
- 4Check that the connectors are secure and free from corrosion and looseness
- 5If the fault remains, have a workshop continue the fault-tracing
Objawy, które możesz zauważyć5
- The engine does not start
- The headlights do not work
- The tail lights or brake lights do not work
- The turn signals do not work
- The windscreen washers do not work
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.